Improvement in harvesters



l- 'KNAUER.

Harvester.

No. 17,157, Y Patent ed April 28, 1857.

lmm WI wnmmm I UNITED STATES PATENT OFFICE.

V ISAIAH KNAUER, OF VALLEY FORGE, PENNSYLVANIA.

IMPROVEMENT IN HARVESTERS.

Specification forming part of Letters Patent No. 17,157, dated April 28,1857.

To all whom it may concern Be it known thatI, ISAIAH KNAUER, of ValleyForge, in the county of Chester and State of Pennsylvania, have inventeda new and useful Improvement in Harvesters; and I do hereby declare thatthe following is a full, clear, and exact description of theconstruction and operation of the same, reference being had to theannexed drawings, forming part of this specification, in which--- Figurel is a top view of the box in which the crank moves in producing themotion of the cutter-bar. Fig. 2 is a section on m superpendicular tobottom of said box. Fig. 3 is a view showing the operating-crank.

Similar characters of reference in the several figures denote the sameparts.

The object of my invention is to prevent the access of dirt to themechanism by which the cutter-bar is reciprocated, and provide for thecoustantlubrication of the same.

The nature of my invention consists in a peculiarly-constructed closebox for the reception of the operating-crank and. its pin, when I usedin combination with covered guides, so

that under all circumstances the top shall be closed while the pin iskept constantly lubricated.

In the drawings, B is the box to which the cutter-bar is attached,consisting of a rim, 1, and bottom I), a portion of which bottom is madesufficiently thick to admit of the formation therein of a long well, w,for the reception of the crank-pin 19. Upon this solid portion of thebox bottom are the projections a, by which the box is held in the guidesG. These guides are connected by a cover, (J, in which is an opening forthe passage of the shaft S, by whose rotation the box is moved, therotation of the said shaft causing the crank it to move within the box,while the pressure of the pin 10 against the sides of the well toproduces the reciprocation of the box and with it the cutter-barattached thereto. The close cover upon the guides prevents the entranceThe peculiarly-constructed close box B, in

combination with guides G G and cover 0, when arranged to operate in themanner and for the purposes set forth.

In testimony whereof I have hereunto signed my name before twosubscribing witnesses.

ISAIAH KNAUER.

Witnesses:

' GEO. PATTEN,

JOHN S. HOLLINGSHEAD.

